If you look on the shelf in your local home improvement store or ask a contractor you will most like get one of two answers: Impregnating Sealer or Penetrating Sealer.
Good news! These are the same thing! With natural stone you do not want to put a topical coating. With impregnating (and penetrating) sealers, the product goes below the surface filling any micro voids. By filling these pores, stains can’t get below the surface to create a stain.
Although the type of sealer has an easy answer, not all sealers are created equal. Like any product, the amount of active ingredient (or raw material) will determine how effective it is. Most sealer sold in big box stores must meet a price point that limits how strong a formula they can produce and still make a profit. Because of this, they are usually less effective.
The best way to tell this is by what it says it the suggested reapplication time. If it says 6-24 months this is a good indicator of a weaker product. A good sealer will last 3 years or more with normal use of a residential surface.
StonePro Premuim NanoSealers like Ultimate Pro and Porous Pro contain the highest level of protection. When applied properly it won’t fail and will last 5 years or more with normal use of a residential surface. When paired with cleaning product formulated to work in conjunction with the sealer – Crystal Clean and Finishing Touch Spray, it will last a lifetime.
For more advice, just contact StonePro’s Help Line at (866) 786-6310 or send a message.